River Avon Lower Twyning Green
EA name: RIVER AVON LOWER TWYNING GREEN
Environment Agency sampling point MD-04769220 · Freshwater - rivers · listed as open (“open” does not mean it is sampled now)
These are samples taken on a date, not live readings of the river. Results reach the Environment Agency's archive days to months after the sample is taken, so the newest here may be weeks or months old. FloodRadar does not grade them.
Where and when
- Last sampled
- 29 Apr 2026, 09:366 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 25 Oct 2026 and had nothing newer.
- Samples banked
- 19 since 17 Oct 2023 Imported periods: 1 Oct 2023 – 25 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 390460, 236520As published, to the nearest 10 m. Open in a map
- River, by its own name
- Avon
- River, by the map
- River AvonPlaced on the river its name gives, 26 m from the line.
- Next gauge downstream
- Upper Pound On the River Avon · 3.4 km along the river
- Nearest gauge upstream
- Bredon On the River Avon · 2.0 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (13 samples)
Monitoring (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
133.2%
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | 133.2 | 133.2% |
| 27 Mar 2026, 09:57 | 99.6 | 99.6% |
| 4 Feb 2026, 08:16 | 95.3 | 95.3% |
| 21 Jan 2026, 15:49 | 100.4 | 100.4% |
| 3 Mar 2025, 10:21 | 100.6 | 100.6% |
| 19 Feb 2025, 13:55 | 95.3 | 95.3% |
| 3 Feb 2025, 09:25 | 99.3 | 99.3% |
| 3 Dec 2024, 14:00 | 87.1 | 87.1% |
| 18 Nov 2024, 14:35 | 95 | 95% |
| 15 Oct 2024, 13:36 | 87.6 | 87.6% |
| 16 Sep 2024, 15:46 | 99.9 | 99.9% |
| 21 Aug 2024, 09:17 | 90.6 | 90.6% |
| 17 Jun 2024, 08:25 | 99.4 | 99.4% |
| 15 May 2024, 13:31 | 106.9 | 106.9% |
| 18 Apr 2024, 11:55 | 100.6 | 100.6% |
| 15 Jan 2024, 09:43 | 96.5 | 96.5% |
| 13 Dec 2023, 08:46 | 85.7 | 85.7% |
| 20 Nov 2023, 11:45 | 94.9 | 94.9% |
| 17 Oct 2023, 09:50 | 94.9 | 94.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
14 mg/l
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | 14 | 14 mg/l |
| 27 Mar 2026, 09:57 | 11.2 | 11.2 mg/l |
| 4 Feb 2026, 08:16 | 11.7 | 11.7 mg/l |
| 21 Jan 2026, 15:49 | 12 | 12 mg/l |
| 3 Mar 2025, 10:21 | 12.1 | 12.1 mg/l |
| 19 Feb 2025, 13:55 | 11.9 | 11.9 mg/l |
| 3 Feb 2025, 09:25 | 11.9 | 11.9 mg/l |
| 3 Dec 2024, 14:00 | 10.1 | 10.1 mg/l |
| 18 Nov 2024, 14:35 | 10.9 | 10.9 mg/l |
| 15 Oct 2024, 13:36 | 9.4 | 9.4 mg/l |
| 16 Sep 2024, 15:46 | 9.59 | 9.59 mg/l |
| 21 Aug 2024, 09:17 | 8.43 | 8.43 mg/l |
| 17 Jun 2024, 08:25 | 9.93 | 9.93 mg/l |
| 15 May 2024, 13:31 | 9.99 | 9.99 mg/l |
| 18 Apr 2024, 11:55 | 10.9 | 10.9 mg/l |
| 15 Jan 2024, 09:43 | 12.4 | 12.4 mg/l |
| 13 Dec 2023, 08:46 | 10.2 | 10.2 mg/l |
| 20 Nov 2023, 11:45 | 10.6 | 10.6 mg/l |
| 17 Oct 2023, 09:50 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
13 °C
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | 13 | 13 °C |
| 27 Mar 2026, 09:57 | 10 | 10 °C |
| 4 Feb 2026, 08:16 | 6.6 | 6.6 °C |
| 21 Jan 2026, 15:49 | 7.6 | 7.6 °C |
| 3 Mar 2025, 10:21 | 7.2 | 7.2 °C |
| 19 Feb 2025, 13:55 | 5.8 | 5.8 °C |
| 3 Feb 2025, 09:25 | 7.5 | 7.5 °C |
| 3 Dec 2024, 14:00 | 8.6 | 8.6 °C |
| 18 Nov 2024, 14:35 | 9.3 | 9.3 °C |
| 15 Oct 2024, 13:36 | 12.1 | 12.1 °C |
| 16 Sep 2024, 15:46 | 17.2 | 17.2 °C |
| 21 Aug 2024, 09:17 | 18.7 | 18.7 °C |
| 17 Jun 2024, 08:25 | 15.3 | 15.3 °C |
| 15 May 2024, 13:31 | 18.5 | 18.5 °C |
| 18 Apr 2024, 11:55 | 11.6 | 11.6 °C |
| 15 Jan 2024, 09:43 | 4.6 | 4.6 °C |
| 13 Dec 2023, 08:46 | 7.6 | 7.6 °C |
| 20 Nov 2023, 11:45 | 10.2 | 10.2 °C |
| 17 Oct 2023, 09:50 | 11.5 | 11.5 °C |
pH
code 0061
8.62
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | 8.62 | 8.62 |
| 27 Mar 2026, 09:57 | 8.07 | 8.07 |
| 4 Feb 2026, 08:16 | 7.9 | 7.9 |
| 21 Jan 2026, 15:49 | 8.18 | 8.18 |
| 3 Mar 2025, 10:21 | 7.95 | 7.95 |
| 19 Feb 2025, 13:55 | 7.99 | 7.99 |
| 3 Feb 2025, 09:25 | 7.8 | 7.8 |
| 3 Dec 2024, 14:00 | 7.88 | 7.88 |
| 18 Nov 2024, 14:35 | 8.04 | 8.04 |
| 15 Oct 2024, 13:36 | 7.94 | 7.94 |
| 16 Sep 2024, 15:46 | 7.96 | 7.96 |
| 21 Aug 2024, 09:17 | 7.81 | 7.81 |
| 17 Jun 2024, 08:25 | 8.07 | 8.07 |
| 15 May 2024, 13:31 | 8.22 | 8.22 |
| 18 Apr 2024, 11:55 | 8.11 | 8.11 |
| 15 Jan 2024, 09:43 | 8.09 | 8.09 |
| 13 Dec 2023, 08:46 | 7.8 | 7.8 |
| 20 Nov 2023, 11:45 | 7.79 | 7.79 |
| 17 Oct 2023, 09:50 | 7.65 | 7.65 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Mar 2026, 09:57 | 0.041 | 0.041 mg/l |
| 4 Feb 2026, 08:16 | 0.065 | 0.065 mg/l |
| 21 Jan 2026, 15:49 | 0.064 | 0.064 mg/l |
| 3 Mar 2025, 10:21 | 0.076 | 0.076 mg/l |
| 19 Feb 2025, 13:55 | 0.065 | 0.065 mg/l |
| 3 Feb 2025, 09:25 | 0.076 | 0.076 mg/l |
| 3 Dec 2024, 14:00 | 0.051 | 0.051 mg/l |
| 18 Nov 2024, 14:35 | 0.051 | 0.051 mg/l |
| 15 Oct 2024, 13:36 | 0.047 | 0.047 mg/l |
| 16 Sep 2024, 15:46 | 0.05 | 0.05 mg/l |
| 21 Aug 2024, 09:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2024, 08:25 | 0.054 | 0.054 mg/l |
| 15 May 2024, 13:31 | 0.034 | 0.034 mg/l |
| 18 Apr 2024, 11:55 | 0.069 | 0.069 mg/l |
| 15 Jan 2024, 09:43 | 0.13 | 0.13 mg/l |
| 13 Dec 2023, 08:46 | 0.073 | 0.073 mg/l |
| 20 Nov 2023, 11:45 | 0.08 | 0.08 mg/l |
| 17 Oct 2023, 09:50 | 0.16 | 0.16 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.26 mg/l
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | 6.26 | 6.26 mg/l |
| 27 Mar 2026, 09:57 | 8.86 | 8.86 mg/l |
| 4 Feb 2026, 08:16 | 7.37 | 7.37 mg/l |
| 21 Jan 2026, 15:49 | 7.25 | 7.25 mg/l |
| 3 Mar 2025, 10:21 | 5.56 | 5.56 mg/l |
| 19 Feb 2025, 13:55 | 4.66 | 4.66 mg/l |
| 3 Feb 2025, 09:25 | 6.25 | 6.25 mg/l |
| 3 Dec 2024, 14:00 | 5.66 | 5.66 mg/l |
| 18 Nov 2024, 14:35 | 9.96 | 9.96 mg/l |
| 15 Oct 2024, 13:36 | 6.07 | 6.07 mg/l |
| 16 Sep 2024, 15:46 | 9.16 | 9.16 mg/l |
| 21 Aug 2024, 09:17 | 8.85 | 8.85 mg/l |
| 17 Jun 2024, 08:25 | 9.17 | 9.17 mg/l |
| 15 May 2024, 13:31 | 7.47 | 7.47 mg/l |
| 18 Apr 2024, 11:55 | 7.67 | 7.67 mg/l |
| 15 Jan 2024, 09:43 | 7.93 | 7.93 mg/l |
| 13 Dec 2023, 08:46 | 5.45 | 5.45 mg/l |
| 20 Nov 2023, 11:45 | 6.64 | 6.64 mg/l |
| 17 Oct 2023, 09:50 | 8.83 | 8.83 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Mar 2026, 09:57 | 0.12 | 0.12 mg/l |
| 4 Feb 2026, 08:16 | 0.14 | 0.14 mg/l |
| 21 Jan 2026, 15:49 | 0.16 | 0.16 mg/l |
| 3 Mar 2025, 10:21 | 0.1 | 0.1 mg/l |
| 19 Feb 2025, 13:55 | 0.093 | 0.093 mg/l |
| 3 Feb 2025, 09:25 | 0.13 | 0.13 mg/l |
| 3 Dec 2024, 14:00 | 0.14 | 0.14 mg/l |
| 18 Nov 2024, 14:35 | 0.19 | 0.19 mg/l |
| 15 Oct 2024, 13:36 | 0.16 | 0.16 mg/l |
| 16 Sep 2024, 15:46 | 0.27 | 0.27 mg/l |
| 21 Aug 2024, 09:17 | 0.28 | 0.28 mg/l |
| 17 Jun 2024, 08:25 | 0.2 | 0.2 mg/l |
| 15 May 2024, 13:31 | 0.18 | 0.18 mg/l |
| 18 Apr 2024, 11:55 | 0.16 | 0.16 mg/l |
| 15 Jan 2024, 09:43 | 0.18 | 0.18 mg/l |
| 13 Dec 2023, 08:46 | 0.16 | 0.16 mg/l |
| 20 Nov 2023, 11:45 | 0.17 | 0.17 mg/l |
| 17 Oct 2023, 09:50 | 0.27 | 0.27 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
912 µS/cm
Sampled 29 Apr 2026, 6 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Apr 2026, 09:36 | 912 | 912 µS/cm |
| 27 Mar 2026, 09:57 | 864 | 864 µS/cm |
| 4 Feb 2026, 08:16 | 652 | 652 µS/cm |
| 21 Jan 2026, 15:49 | 610 | 610 µS/cm |
| 3 Mar 2025, 10:21 | 746 | 746 µS/cm |
| 19 Feb 2025, 13:55 | 775 | 775 µS/cm |
| 3 Feb 2025, 09:25 | 731 | 731 µS/cm |
| 3 Dec 2024, 14:00 | 694 | 694 µS/cm |
| 18 Nov 2024, 14:35 | 941 | 941 µS/cm |
| 15 Oct 2024, 13:36 | 706 | 706 µS/cm |
| 16 Sep 2024, 15:46 | 946 | 946 µS/cm |
| 21 Aug 2024, 09:17 | 1038 | 1038 µS/cm |
| 17 Jun 2024, 08:25 | 977 | 977 µS/cm |
| 15 May 2024, 13:31 | 918 | 918 µS/cm |
| 18 Apr 2024, 11:55 | 821 | 821 µS/cm |
| 15 Jan 2024, 09:43 | 835 | 835 µS/cm |
| 13 Dec 2023, 08:46 | 583 | 583 µS/cm |
| 20 Nov 2023, 11:45 | 681 | 681 µS/cm |
| 17 Oct 2023, 09:50 | 665 | 665 µS/cm |
Everything measured here
13 determinands, each kept by its code, unit and sample material: results in different units or on different materials are never mixed. A “below” result is under the laboratory's detection limit, not zero.
Show all 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 19 | Oct 2023 – Apr 2026 | 133.2% 29 Apr 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Oct 2023 – Apr 2026 | 14 mg/l 29 Apr 2026 |
| Temperature of Water 0076 | River water | 19 | Oct 2023 – Apr 2026 | 13 °C 29 Apr 2026 |
| pH 0061 | River water | 19 | Oct 2023 – Apr 2026 | 8.62 29 Apr 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Oct 2023 – Apr 2026 | below 0.03 mg/l 29 Apr 2026 |
| Nitrate as N 0117 | River water | 19 | Oct 2023 – Apr 2026 | 6.26 mg/l 29 Apr 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Oct 2023 – Apr 2026 | below 0.01 mg/l 29 Apr 2026 |
| Conductivity at 25 C 0077 | River water | 19 | Oct 2023 – Apr 2026 | 912 µS/cm 29 Apr 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Oct 2023 – Apr 2026 | 150 mg/l 29 Apr 2026 |
| Ammonia un-ionised as N 0119 | River water | 19 | Oct 2023 – Apr 2026 | below 0.00068 mg/l 29 Apr 2026 |
| BOD : 5 Day ATU 0085 | River water | 14 | Apr 2024 – Apr 2026 | 6.5 mg/l 29 Apr 2026 |
| Nitrite as N 0118 | River water | 19 | Oct 2023 – Apr 2026 | 0.041 mg/l 29 Apr 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Oct 2023 – Apr 2026 | 6.3 mg/l 29 Apr 2026 |
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.